Self-powered wireless sensing system with cylindrical high voltage side electric field energy harvesting by discharge circuit

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Sensors and Actuators A-physical Pub Date : 2024-11-12 DOI:10.1016/j.sna.2024.116047

Ke Zhou , Xiaoming Wang , Lu Wang , Congsheng Duan , Ying Zhang , Libo Zhao , Ryutaro Maeda

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Abstract

To warn of overcurrent heating, temperature wireless sensor node (WSN) need to be deployed on the overhead lines of the power grid. The sustainable power supply of WSN is difficult. Using the electric field energy around the transmission line to power the sensor has the advantages of stability, reliability and sustainability, but the electric field energy harvesting (EFEH) power need to be improved. This paper studies the principle of energy harvesting by displacement current and discharge method, and analyzes the influencing factors of the output power of the EFEH unit. The power improvement method of the EFEH unit is proposed by improving the coupling capacitor and the energy storage capacity discharge voltage. The relationship between the structural parameters of energy cylinder and induced potential and coupling capacitance is explored by COMSOL simulation software. A low-cost, self-driven and adjustable high voltage undervoltage lock (UVLO) circuit is proposed. A 10 kV high voltage generation platform is built in the laboratory, and the wireless temperature and humidity sensor is self-powered by the EFEH with power of 2.04 mW. This research has important theoretical and application value for the high voltage side EFEH powered WSN.

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利用放电电路采集圆柱形高压侧电场能量的自供电无线传感系统

为了发出过电流加热警报，需要在电网的架空线路上部署温度无线传感器节点（WSN）。WSN 的持续供电非常困难。利用输电线路周围的电场能为传感器供电具有稳定性、可靠性和可持续性等优点，但电场能采集（EFEH）功率有待提高。本文研究了位移电流和放电法能量收集的原理，分析了电场能量收集装置输出功率的影响因素。提出了通过改进耦合电容器和储能容量放电电压来提高 EFEH 单元功率的方法。利用 COMSOL 仿真软件探讨了能量筒结构参数与感应电动势和耦合电容之间的关系。提出了一种低成本、自驱动和可调节的高压欠压锁定（UVLO）电路。在实验室中搭建了一个 10 kV 的高压发生平台，无线温湿度传感器由 EFEH 自供电，功率为 2.04 mW。这项研究对于高压侧 EFEH 供电的 WSN 具有重要的理论和应用价值。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...